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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <!-- table>tr>td*5 -->
    <table border="1px" width="400px" height="160px" cellspacing="0" align="center">
        <caption>
            <h3>学生信息表</h3>
        </caption>
        <thead>
            <tr>
                <th>序号</th>
                <th>姓名</th>
                <th>年龄</th>
                <th>性别</th>
                <th>地址</th>
            </tr>
        </thead>
        <tbody align="center">
            <tr>
                <td>1</td>
                <td>tom</td>
                <td>20</td>
                <td>男</td>
                <td>北京</td>
            </tr>
            <tr>
                <td>2</td>
                <td>alice</td>
                <td>19</td>
                <td>女</td>
                <td>北京</td>
            </tr>
            <tr>
                <td>3</td>
                <td>mike</td>
                <td>20</td>
                <td>男</td>
                <td>上海</td>
            </tr>
            <tr>
                <td>4</td>
                <td>lucy</td>
                <td>22</td>
                <td>男</td>
                <td>南京</td>
            </tr>
        </tbody>
        <tfoot>
            <tr>
                <td>总计：</td>
                <td colspan="4">4个</td>
            </tr>
        </tfoot>
    </table>
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